1 warning: the feature `async_fn_in_trait` is incomplete and may not be safe to use and/or cause compiler crashes
2 --> $DIR/object-safety.rs:3:12
4 LL | #![feature(async_fn_in_trait)]
7 = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information
8 = note: `#[warn(incomplete_features)]` on by default
10 error[E0038]: the trait `Foo` cannot be made into an object
11 --> $DIR/object-safety.rs:11:12
13 LL | let x: &dyn Foo = todo!();
14 | ^^^^^^^^ `Foo` cannot be made into an object
16 note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
17 --> $DIR/object-safety.rs:7:14
20 | --- this trait cannot be made into an object...
21 LL | async fn foo(&self);
22 | ^^^ ...because method `foo` is `async`
23 = help: consider moving `foo` to another trait
25 error: aborting due to previous error; 1 warning emitted
27 For more information about this error, try `rustc --explain E0038`.